#3A57BC#3A57BC

#3A57BC is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.3% C 0.162 H 267.9°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#3A57BC
RGB	rgb(58, 87, 188)
HSL	hsl(227, 53%, 48%)
HSV	hsv(227, 69%, 74%)
CMYK	cmyk(69.1%, 53.7%, 0%, 26.3%)
CIE-LAB	lab(40.16, 23.43, -56.45)
CIE-LCH	lch(40.16, 61.12, 292.54°)
OKLab	oklab(49.28% -0.006 -0.1623)
OKLCH	oklch(49.28% 0.162 267.9)
XYZ	xyz(14.2271, 11.3454, 49.0073)
Luminance	0.1135 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A57BC #BC9F3A

analogous

#3A98BC #3A57BC #5E3ABC

triadic

#3A57BC #BC3A57 #57BC3A

tetradic

#3A57BC #BC3A98 #BC9F3A #3ABC5E

square

#3A57BC #BC3A98 #BC9F3A #3ABC5E

split-complementary

#3A57BC #BC5E3A #98BC3A

monochromatic

#1D2C5E #2C418D #3A57BC #647CCF #93A3DE

Accessibility & contrast

On white

6.42

#3A57BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#3A57BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A57BC

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A57BC	#FFFFFF	#000000	##FFFFFF
##3A57BC	1.00	6.42	3.27	6.42
#FFFFFF	6.42	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C65C0

Deuteranopia (green-blind)

#0059BA

Tritanopia (blue-blind)

#006F81

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3a57bc;
/* rgb */ color: rgb(58, 87, 188);
/* oklch */ color: oklch(49.3% 0.162 267.9);

Tailwind

colors: {
  custom: {
    50: '#8086d1',
    500: '#3a57bc',
    950: '#000000',
  },
}

SCSS

$custom: #3a57bc;
$custom-light: #8086d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3a57bc",
  "rgb": {
    "r": 58,
    "g": 87,
    "b": 188
  },
  "hsl": {
    "h": 226.615,
    "s": 52.846,
    "l": 48.235
  },
  "oklch": {
    "l": 0.49278,
    "c": 0.16246,
    "h": 267.9
  },
  "luminance": 0.11347
}

Semantic roles & 50–950 ramp

primary

#3A57BC

secondary

#C9BB89

accent

#BC4CDC

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3A57BC

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →